Weird Problem with MailScanner

[Scott Silva]

on 10/22/2007 11:37 AM Jonas A. Larsen spake the following:
>>> So the filtering, in my opinion should be done only in the MailScanner
>> server, the thing is that I want to know which is your recommendation to
>> build the filtering on sendmail and if there can be a solution with the
>> MS Exchange filtering, perhaps I misunderstood the documentation.
>>
>> You need to verify recipient addresses on the Exchange server. If you
>> can make sure that Exchange will not accept dummy address on SMTP
>> sessions you can use this to make sure you do not accept them on your
>> sendmail server either. I can't quote the exact syntax for sendmail or
>> the knob on the Exchange screens as I use neither.
> 
> 
> I use MS with exim which forwards to various exchange servers via smtp. I
> activate the recipient filter in exchange, so it only accept mail for
> recipients that actually exist. I then make exim do what it calls "callouts"
> meaning it connects via smtp to the exchange server when ever somebody tries
> to send mail to that site, it then checks if the recipient exists, if not it
> rejects the mail.
> 
> I don't know how you do it in sendmail, but im sure it's possible. Atleast
> it's the best way to make sure u only scan mail for real recipients.
> 
> Just my 5 cents.
> 
> Jonas Larsen
> 
Sendmail needs a milter to do it. But I think the existing server has too 
little memory to add anything to.

-- 
MailScanner is like deodorant...
You hope everybody uses it, and
you notice quickly if they don't!!!!